UPDATE 1-Hargreaves Lansdown profit up as stock market improves

* FY adjusted pretax profit up 22 pct at 90.7 mln stg

* FY revenue up 20 pct at 159 mln stg

* AuM rises 47 pct to 17.5 bln stg

* Shares rise nearly 3 pct (Adds details)

Sept 1 (Reuters) - Hargreaves Lansdown (HRGV.L) posted a 22 percent jump in full-year adjusted pretax profit, boosted by a buoyant stock market and new business, and the British investment broker hiked its total dividend by 18 percent.

The group, which offers fund management as well as savings and pension products, said it would pay a final dividend of 0.58 pence per share and a special dividend of 1.7 pence per share, taking total dividends to 11.88 pence.

For the year ending June 30, the company posted adjusted pretax profit of 90.7 million pounds ($139.1 million) up from 74.5 million pounds a year ago.

Revenue rose 20 percent to 159 million pounds, the broker of individual savings accounts and self-invested personal pension accounts said.

Assets under administration at June-end rose 47 percent to 17.5 billion pounds.

The FTSE All Share index .FTAS rose to a high of 2989.13 in April from just 2172.08 on July 1, 2009 -- the beginning of the company's accounting period, it said in a statement.

The Vantage segment, which includes investments that clients manage directly or through tax-efficient vehicles, saw new clients increase by 48,000.

Shares of the company, which have risen more than 63 percent in the past year, were up 2.8 percent at 399.9 pence at 0703 GMT on the London Stock Exchange. ($1=.6519 Pound) (Reporting by Shivani Singh in Bangalore; Editing by Aradhana Aravindan)